General Description; Application; Types Of Use; Structure - Homa GRP 56 ET Originalbetriebsanleitung

3. General description

3.1. Application

Waste water disposal with small pipework cross-sections,
good delivery heads at relatively low flow rates and pres-
sure drainage systems in areas with difficult topography.
GRP pumps shred solids in the pumped medium in next
to no time, so plastic pipework with a cross-section as
small as DN 50 can be used. This significantly reduces
the cost of materials and laying the waste water systems.
If the pumped medium contains corrosive substances,
the corrosion resistance of the materials used must be
observed. For such applications, versions made partly or
entirely of highly resistant materials (stainless steel) are
also available.
Use in sip operation is not permitted. The level of
pumped medium must always be above the upper
edge of the pump housing.
The temperature of the conveyed medium may be up to
40 °C, or up to 60 °C for a short period. The maximum
density of the medium is 1040 kg/m³ and the pH may be
from 6 – 11. Stainless steel versions can be used at pH
values from 4 – 14. However, the pH value should only be
regarded as a guideline. In any case, alongside the com-
position of the medium, the durability of the pump must
be requested from the manufacturer. Depending on the
composition, it may be necessary to use special sealing
materials.

3.2. Types of use

The motors are designed for continuous operation (S1),
maximum 15 starts per hour.
The hydraulic is designed for permanent operation, e.g.
supply of industrial water.

3.3. Structure

The fully-submersible system consists of a motor, the
pump housing and the suitable impeller with macerator.
All significant components are generously proportioned.
30 | EngliSH
No. Description
1 Handle
2 Cable inlet
3 Type label
4 Motor housing with cooling jacket
5 Discharge
6 Suction sieve with cutter system
7 Pump housing

3.3.1. Rating Plate

3Ph
3Ph Ex